Bsi bs en 50131 8 2009

The following dates were fixed: – latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement dop 2010-04-01 –

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BSI British Standards

Alarm systems — Intrusion and hold-up systems —

Part 8: Security fog device/systems

BS EN 50131-8:2009

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 July 2009

Amendments issued since publication Amd No Date Text affected

Central Secretariat: avenue Marnix 17, B - 1000 Brussels

This European Standard was approved by CENELEC on 2009-04-01 CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member

This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified

to the Central Secretariat has the same status as the official versions

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom

Foreword

This European Standard was prepared by the Technical Committee CENELEC TC 79, Alarm systems

The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50131-8

on 2009-04-01

The following dates were fixed:

– latest date by which the EN has to be implemented

at national level by publication of an identical

national standard or by endorsement (dop) 2010-04-01

– latest date by which the national standards conflicting

with the EN have to be withdrawn (dow) 2012-04-01

The series EN/TS 50131 will consist of the following parts, under the general title “Alarm systems –

Intrusion and hold-up systems”:

Part 1 System requirements

Part 2-2 Intrusion detectors – Passive infrared detectors

Part 2-3 Requirements for microwave detectors

Part 2-4 Requirements for combined passive infrared and microwave detectors

Part 2-5 Requirements for combined passive infrared and ultrasonic detectors

Part 2-6 Opening contacts (magnetic)

Part 2-7-1 Intrusion detectors – Glass break detectors (acoustic)

Part 2-7-2 Intrusion detectors – Glass break detectors (passive)

Part 2-7-3 Intrusion detectors – Glass break detectors (active)

Part 3 Control and indicating equipment

Part 4 Warning devices

Part 5-3 Requirements for interconnections equipment using radio frequency techniques Part 6 Power supplies

Part 7 Application guidelines

Part 8 Security fog devices/systems

Contents

Introduction 5

1 Scope 6

2 Normative references 6

3 Definitions and abbreviations 6

3.1 Definitions 6

3.2 Abbreviations 7

4 Environmental 7

4.1 Environmental classification 7

4.2 Environmental tests 7

5 Access levels 8

6 Regulation requirements 8

6.1 General 8

6.2 Electrical safety 8

6.3 Safety data sheets 8

6.4 EMC requirements 8

6.5 Warning signs 8

6.6 Pressure vessels 8

7 Device/system parameters 9

7.1 Performance 9

7.2 Battery backup requirement 9

7.3 IP/IK rating 9

7.4 Wire free interconnections 9

8 General requirements 9

8.1 Tamper 9

8.2 Fog neutralisation 9

8.3 Discharge nozzle 10

8.4 Fog eject limiter 10

8.5 Heating unit 10

8.6 Overheating 10

8.7 Accidental triggering 10

8.8 Isolation of the security fog system 10

8.9 Fixings 10

9 Operational requirements 10

9.1 Communication 10

9.2 Fault monitoring 11

9.3 Power failure 11

9.4 Efficacy 11

9.5 Non-toxicity 12

9.6 Residue 12

10 Consumables 12

10.1 Replenishment 12

10.2 Formulation 12

10.3 Traceability 12

11 Marking 12

12 Documentation 12

13 Design, installation, operation and maintenance (informative) 12

Annex A (normative) Performance tests 13

Annex B (normative) Security fog system warning sign 20

Annex C (informative) Guidance on design, installation, operation and maintenance of the security fog system 22

Bibliography 24

Figures Figure A.1 – Test chamber 17

Figure A.2 – Target 18

Figure A.3 – Partial target 19

Figure B.1 – Security fog system warning sign 20

Tables Table A.1 15

Table A.2 16

Table B.1 – How to calculate the size of sign you need 21

Introduction

This European Standard applies to a security fog system that is part of an Intruder and Hold-up Alarm

System (I&HAS) and is used both as a security deterrent device for building security and as a crime

reduction device for the protection of people

This European Standard is intended to assist insurers, intruder alarm companies, customers and the

police in understanding the principles and specification of a security fog system

The purpose of a security fog system is to reduce the visibility in a protected area by the use of a

non-toxic fog in order to form a barrier between the criminal and the criminal’s intended target

This European Standard is not intended to cover standalone or mobile security fog systems

This European Standard has been designed to be flexible enough to encourage and encompass

future developments in the field of security fog systems

1 Scope

This European Standard specifies the requirements for security fog systems as a part of an I&HAS It

covers application and performance and also gives the necessary tests and trials to ensure efficiency

and reliability of such obscuration devices

This European Standard also gives guidance on the criteria for design, installation, operation and

maintenance of security fog systems

2 Normative references

The following referenced documents are indispensable for the application of this document For dated

references, only the edition cited applies For undated references, the latest edition of the referenced

document (including any amendments) applies

EN 50130-5:1998 Alarm systems – Part 5: Environmental test methods

EN 50131-1:2006 Alarm systems – Intrusion and hold-up systems – Part 1: System

EN 61000-6-3:2007 Electromagnetic compatibility (EMC) – Part 6-3: Generic standards –

Emission standard for residential, commercial and light-industrial environments (IEC 61000-6-3:2006)

3 Definitions and abbreviations

signals or messages emanating from two or more independent intrusion detectors indicating there is a

high probability that a genuine intrusion or genuine attempted intrusion has occurred within a specified

security fog system

a device (or a series of separate independent components that make up a device) or system within

tamper resistance housing(s), that, when activated, produces a dense artificial fog, from a

consumable, to reduce visibility in the protected area

3.1.5

verification

the process whereby the security fog system will only operate once the Intruder Alarm System (IAS)

has operated and a detection device in the area of the security fog system has triggered or an Hold-up

Alarm System (HAS) has been operated

3.1.6

wet fog

this may result from incomplete atomisation of the fogging agent causing a direct spray or spatter from

the fog ejection nozzle This may also result from poor atomisation of the fogging agent causing

individual fog particle size to be too large Such large particles may fall down and settle on level

surfaces as a greasy residue

3.2 Abbreviations

For the purposes of this document, the abbreviations given in EN 50131-1 and the following apply

EMC Electromagnetic compatibility

IK Degrees of protection provided by enclosures for electrical equipment against

external mechanical impacts

IP Ingress protection classification

LEA Law Enforcement Authority (Police or governmental body that responds to

activations from security systems)

4 Environmental

4.1 Environmental classification

The security fog system shall meet, as a minimum, Environmental Class II (Indoor – General:

environmental influences normally experienced indoors when the temperature is not well maintained)

in accordance with EN 50131-1

EXAMPLE In corridors, halls or staircases and where condensation can occur on windows and in unheated storage areas or

warehouses where heating is intermittent

NOTE Temperatures may be expected to vary between -10 °C and +40 °C with the average relative humidity of

approximately 75 % non-condensing

4.2 Environmental tests

For all operation the security fog system shall not activate, generate tamper, fault or other signals or

messages when subject to the specific range of environmental and EMC conditions and shall continue

to function normally

The following Class II level environmental tests from EN 50130-5 shall be applicable when testing the

security fog system:

a) Clause 8: dry heat operational;

b) Clause 10: cold test operational;

c) Clause 14: damp heat, cyclic operational;

d) Clause 17: sulphur dioxide (SO2) (endurance);

e) Clause 20: impact operational;

f) Clause 22: vibration sinusoidal (operational);

g) Clause 23: vibration sinusoidal (endurance);

h) Clause 27: electromagnetic compatibility, immunity (operational)

5 Access levels

The access levels used in this standard shall be as stated in EN 50131-1:2006, 8.3.1, except for

access level 2 Access level 2 “user” shall not be able to access the security fog system

6 Regulation requirements

6.1 General

The security fog system shall operate to the following minimum relevant European regulations

6.2 Electrical safety

The electrical (safety) construction of the security fog system shall be to EN 60065

6.3 Safety data sheets

The transport, storage and handling of consumables, shall comply with the requirements stated on the

safety data sheets

6.4 EMC requirements

The security fog system shall meet the EMC conditions and the severity levels defined in

EN 61000-6-3 and EN 50130-4

6.5 Warning signs

As a minimum security fog device/system warning signs shall be positioned on the normal entry

point(s) to the building (European safety signs Directive 92/58/EEC) See Annex B

6.6 Pressure vessels

Any security fog system that contains pressure vessels shall be transportation and its usage shall

meet the current industry safety requirements (see Directive 97/23/EC, Article 3)

7 Device/system parameters

7.1 Performance

The security fog system shall meet the following minimum performance:

- Reduction of visibility to 1 m within 60 s in a minimum volume of 150 m³ and maintaining

obscuration for a period of 10 min in an un-vented room (performance tests shown in Annex A)

The performance of the security fog system shall be detailed as shown in Annex A

7.2 Battery backup requirement

The battery backup requirements of a security fog system cannot achieve compliance of EN 50131-1

due to the amount of energy used to power the security fog system

As a general requirement a security fog system shall be capable of a single full system operation for a

period within one hour after mains fail

A single full system operation shall be defined by the manufacturer in the security fog system

7.4 Wire free interconnections

If wire free interconnections are used then the requirements shall meet EN 50131-5-3

8 General requirements

8.1 Tamper

All material parts and components of the security fog system shall be inside (a) secure,

tamper-resistant outer case(s) The opening by normal means of access to the outer case(s) shall

create an (a tamper message or signal) alarm condition

The security fog system shall not eject fog on an individual tamper signal or message if the I&HAS is

in the unset condition

8.2 Fog neutralisation

A security fog system shall not be damaged or neutralised by the phenomenon (fog) it is supposed to

produce

If the discharge nozzle becomes blocked then it shall not cause a hazard

8.4 Fog eject limiter

The security fog system shall incorporate a method for limiting the quantity of ejected fog in order to

reduce the possibility of damaging residue

8.5 Heating unit

The temperature of the heating unit shall be fully monitored and controlled to ensure that it remains

within manufacturer's parameters

8.6 Overheating

The heater unit shall be fitted with a thermal cut off device to prevent overheating outside the

manufacturers' parameters When the thermal cut off operates it shall require a reset by an authorised

technician

8.7 Accidental triggering

The security fog system shall not be able to be triggered by an unset I&HAS, but the security fog

system can be triggered by a set HAS if so configured

8.8 Isolation of the security fog system

There shall be a means of isolating the security fog system from the CIE to avoid a maintenance

technician triggering the security fog system during routine maintenance

9.1.1 Minimum information to be communicated

a INPUTS into the security fog system:

i set/unset,

ii trigger,

iii verification

b OUTPUTS from the security fog system:

i security fog system active,

ii tamper,

iii low battery charge (if applicable),

iv mains fail,

v no consumables,

vi incorrect temperature

NOTE For outputs iii to vi a single signal or message may represent these conditions

The security fog system shall be monitored so that a fault (see 9.1) will generate a signal or message,

which shall be transmitted back to the host I&HAS

9.3 Power failure

A power failure shall not lead to the triggering of the security fog system

If a power failure occurs, the security fog system shall send a signal or message to the I&HAS within

2 min, and where an ATS exists for remote notification at the I&HAS, immediately notification to the

ARC shall occur

9.4 Efficacy

The security fog system shall produce fog that provides obscuration within the protected area

according to the manufacturer's specification

9.5 Non-toxicity

The manufacturer shall provide proof that the consumables and the emitted fog do not present a toxic

hazard to persons in normal use and manufacturers specified fluid life-time bearing in mind the use of

the security fog system This assessment shall be carried out by a accredited laboratory in the relevant

field and shall include the following minimum elements:

– identification for the product tested;

– bibliographical research;

– a chromatographic test assessing all the components, including gaseous components;

– the laboratory’s conclusions

9.6 Residue

The security fog system used in accordance with the manufacturer’s instructions shall not result in

damaging residue in the area of use

10 Consumables

10.1 Replenishment

The consumables used in security fog systems shall be replaced/replenished by the

manufacturer/installer in accordance with manufacturer's instructions

– a safety data sheet on all consumables;

– security fog system warning signs

13 Design, installation, operation and maintenance (informative)

Guidance information for installers and maintainers on the design, installation, operation and

maintenance is shown in Annex C